Shearing-roll for cutting blanks for fence-posts



(N0 Model.)

o. A. PB SHEARING RULLS POR CUTTIN N 463 9 (No Model.)

2 sheets-sheet 2. i C. PETERSON SHERING ROLLS FR CUTTING BLANKS EUR FNEl POSTS.

Patented Nov. 24, 1891'.

WIT/VESSES: I

ATTORNEYS OYRUS A. PETERSON, OF STRATTON, NEBRASKA.

SHEARING-ROLL FOR CUTTING BLANKS FOR FENCE-POSTS.

SPECIFICATION forming part of Letters Patent No. 463,916, dated November 24, 1891.

Application iiled Tilly 1 9, 1 8 89.

To all whom it may concern:

Be it known that I, CYRUs A. PE'rEEsoN, a citizen of the United States, residing at Stratton, in the county of Hitchcock and State of Nebraska, have invented certain new and useful Improvements in Shearing-Rolls for Cutting Blanks for Fence-Posts, of which the following is a specification.

The object of my invention is to provide means for economically and rapidly cutting blanks from sheet metal to forln sheet-metal fence-posts for Wire or board fences; and it consists in a pair of metal rolls having indented casts or cuts therein, the pattern for said blanks which coverthe entire periphery of the rolls, and which patterns upon the two rolls form the cutting or shearing edges, which co-operate to subdivide the whole of the metal sheet into blanks with a minimum of waste, as hereinafter fully described. 4

Figure 1 is a perspective View of the pair of rolls. Fig. 2 is a vertical central section through the same. Fig. 3 is a diagram of the pattern of one of the rollers, as projected or extended on a straight or flat plane surface; and Fig. 4 is a detail of one of the blanks.

Referring to Fig. 4, it will be seen that the blanks are of a coffin shape. rlhe part a t) is designed to go into the ground and the part a c is designed to extend above the surface of Ithe ground and to be connected to the wires. This blank for greater strength is in a subsequent operation to be bent at right angles along a central longitudinal line, so as to give a right-angular cross-section, and the edges are designed to be perforated to receive staples or otherfastenings; but these operations form no part of my invention. One of the rollers A has its periphery cast, cut, or indented, so as to form cutting-edges d, corresponding to the pattern of Fig. 3,the peripheral surfaces d e being inclined to the axis of the roll, with the part c nearer the axis than d and with the deeper part c nearest to the gear- Wheel A of that roller. The other roller Bis similarly formed, except that the cutting-edge tl is nearer the gear-wheel B than the part e. When the two rollers are iitted together, the two high edges d d of each roller sustain the Serial No. 318,090. (No model.)

relation of the two blades of a pair of shears, and in passing each other the slight distance of the indentation serves to cut or shear the stock between them.

, In laying off the pattern of the rollers the short ends d h of one series of blanks alternate with the short ends of the next series, and the long ends d c of one series alternate with the long ends of the next series, so as to use up the stock as nearly as possible Without waste, there being no waste stock except the half-pieces of blanks formed at the ends of the rollers. At the ends of the blank pattern there are formed on the rollers short cuttingedges d and e', arranged longitudinally to the axis, which serve to sever the blank-strips into separable individual blanks. -Power is applied to these rollers after the usual manner of roller-mills, and the rollers are geared together' accurately, so that the pattern of one roller registers accurately with that of the other, so as to insure a perfect shearing action.

The sheet metal vis preferably run through these rollers hot, and in the saine heat used in rolling the sheet, so as to avoid the expense of reheating.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent` is 1. The shearing-rollers herein described, having their pcripheries subdivided into shearing-edges d, and indentations or depressions c, forming matched subdivisions of fence-post blanks and having their faces d e inclined to the axis. in opposite directions, substantially as and for the purpose described.

2. The shearing-rollers herein described, having their peripheries subdivided into shearing-edges d, and indentations or depressions e, forming matched subdivisions of fence-post blanks, and having their faces de inclined to the axis in opposite directions, and

having also the registering cutting-edges d c arranged at the ends of the blanks for serving them, substantially as shown and described.

` OYRUS A. PETERSON. Witnesses:

C. M. FRENCH, L. W. FRENCH. 

